Mechanism for raising crane-jibs and the like which move in a vertical plane.



P. HEYM & R. KIMMEL. MECHANISM FOR RAISING CRANE JIBS AND THE LIKE WHICH MOVE IN A VERTICAL PLANE.

APPLIGATIDN FILED JXILY 11,1908.

Patented Feb. 23, 1909.

2 SHEETSSHBET 1.

P. HBYM & R. KIMMEL. MEGHANISM FOR RAISING CRANE JIBS AND THE LIKE WHICH MOVE IN A VERTICAL PLANE.

APPLIOA'IION FILED JULY 11K19O8.

Patented Feb. 23, 2909.

2 SHEETS-EHBET 2,

f1 gr? r mm asses: Jul mam:

works at one end, said nut being rigidly mounted on the frame of the crane, and a movable nut through which said spindle irks at the other end, links connecting the said movable nut to the jib, and means for giving/Ito said spindle an axial movement.

5. mechanism for raising crane-jibe that are movable in a vertical plane, consisting of spindles provided with right and left hand t reads, nuts rigidly mounted on the frame of the crane throu h which said spindles work at one end an movable nuts mounted upon a sliding carriage through which the said spindles work at their other ends links connecting said sliding carriage to the jib, and means for rotating said spindles.

6. Mechanism for raisin crane-jibe that are movable in a vertical piiine consisting of spindles provided with right and left hand t ireads, nuts rigidly mounted on the frame, of the crane throu h which said spindles work at'ene end an movable nuts mounted upon a sliding carriage through which the said spindles work at their other ends, links connecting said sliding carriage to the jib and means for simultaneously rotating the said spindles and effecting their axial movement.

7. Mechanism for raisin crane-jihs that are movable in a vertical p ane consisting of spindles provided with right and left hand t ireads, nuts rigidly mounted on the frame of the crane through which said spindles work at one end and movable nuts mounted upon a sliding carriage through which the said spindles work at their other ends. links connecting said sliding carriage to the jib, and means for simultaneously rotating the said spindles and eifecting their axial movement consisting of a sliding carriage within which are disposed toothed wheels mounted fixedly upon t rotating the said toot ed wheels.

8. Mechanism for raisin crane-jibe that are movable in a vertical p ane consisting of spindles provided with right and left hand ie respective spindles with means for;

threads, nuts, ri 'dly mounted on the frame of the crane,- t rough which said spindles wor at one end and movable nuts mounted upon a sliding carriage through which the said spindles work at their other ends, links connecting said sliding carriage to the jib. and means for simultaneously rotating the said spindles and effecting their axial movement consisting of a sliding carriage wit him which are disposed toothed wheels mounted fixedly u I011 the spindles, a inion engaging with sai toothed wheels antra driving, shalt upon which said pinion is slidably mounted.

9. Mechanism for raisin crane-jibe that are movable in a vertical p ane consisting of a spindleprovided with right and left hand threads, a nut rigidly mounted on the frame of the crane through which the spindle Works at one end and a movable nut in which iii! spindle works at the other end and means {or simultaneously rotating the said spindle and e'flectin its axial displacement.

l0. fiechanism for raising crane-jibe that are-movable in a vertical plane consisting of a spindle provided with right and left hand threads, a nut rigidly mounted on the frame of the crane through which the spindle works at one end and a movable nut In which the spindle works at the other end, and means for simultaneously rotatinr the said spindle and efi'ecting its axial disp acement consistin of a carria e within which a toothed w eel is disposer and mounted upon the said spindle and a pinion for rotating said toothed wheels, the said pinion beingslidably' mounted upon the driving shaft.

In witness whereof we have hereunto signed our names to this specification in the presence of two subscribing witnesses.

FRIEDER ICH HEYM. RICHAR KIMMEL.

'itnesscs:

BESSIE F. DUNLAP, Louis VAnnonNa 

